Pocket glass



A. DICKMANN POCKET GLASS Filed March 25, 1925 Pgenied 'ou'. Sie', i926.

f 'AUGUST DCKMANN, oF FURTEGEBMANY;

` POCKET -GLjAss f ;Appiicatiunied Maren 23,- 1925,seri1i\ro.f17,74o, and@ Germany Jnilarygdi 1925 i L'Irhisinventidn relates ,to a pocket-glass as vvfunny 1 article owingn to the lfact that when V '.1 :Using the pocketfglass' the observergs'ees a figure5a picture or thelikepassing overt-he reiectinggsurfaceof the glass. This' effect isobtained by using Vtheback wall o faJ .flat

boxivias reflectingV surface, vthefront wall a. and b a body Infor. instance a paperzdisk.

f being made; entirely or ,partly of transpan `1 g'glass'.isheld.y

w a The transparent front Wall of .the box is v ent glass, a body being inserted in Ythey hollow space betweenzthe two walls of theiboxf :andg said body moving through the box ac -cording to the position inwhichthe pocket-` .preferably partly covered at the upper iorlower" endorat- Aboth ends by a piece. of. paper. The body enclosedin the box is not S visible whe'ngthepocket .glass is held in the held at a convenient distance the one from vertical position andthehidden b ody will: .suddenly appear.y lAJspecial effectv is `ob-i itainedfwhen the'covered parts of the ifront wall ofthe-box ,are reflecting as finthis'cas'e .aj continuous reflecting surfaceis obtained and fit looks asif the` body appeared in mys' .terious yI nanneron the'surface. @The movementl of the enclosed body ,be ycontrolled in various manners.,

. A fthinalmost invisible hread` may Vbe used for limiting. this niovement` so thatthe body stops for instance atthe centre ofthe glass.

- An` embodiment of i the l invention- ,shownf by -way of example,

on. the` accom'- Figs. 1- and 2 show respectively infront gravity. Y

Figs. 3 and Lishow respectlvelyin eleva# tion and'verticfal section a pocket glass,the

front wall being removed in Fig. f3, in

which the movement of the 4body is-'con-.

trolled by a weight. Y

vvFigs. 5 and 6. show respectively in front` elevation and vertical section a pocket glass filled withy a liquid. The specific gravity of the enclosed body is either slightly lighter' or slightly heavier than that of the liquid,

so that the body ascendsor descendsA slowly over the reflecting surface.

In the pocket-glass shown in Figs. land 2 the rear wall a and the front wall.` Z) are the other by a strip of cardboard inserted between the edges. Thek rear wall a has on the outer surface a mirror foil d protected "T surface.;

thread.

Inthe pocket glassshown irilfiggs. Sand 'i themirror foil c ison the inner'` surface v.of :the rear Wall aso'. that the rear Vside of may I 'the hollow space betweenl the `having a picture .painted on itv or a .funny figure, -1s enclosed. .5 This'b'ody. 71, suspended Vona thin threadz'which is scarcelyvisf g thefpoclret glass, is' also reflecting. y.On Y,the

unted inafranieg of `U-shaped cross section. V Y

rear wall. a a plate Z-'of cardboard, wood ,or 3

like isfplace'dfon the lower part'of the v.1nner surf ace ofV vtherear wall and onthe upper part apiece of glass n. havingainirror'foil menthe back is Hired. .lnthe plate 1 any wanted., A' @einer weights-11's 'exea tok onelendof lever :pand'ashort'rod .T is hi-ngedly kconnected 'withy lthe other end of the lever. VA cross arm t atthe'iiipper'end of the rod?a carriesv the' picture oriigure.

The front wallib of the mirror has on the lower part of itsrear surfacev amirror foil i gf, its vrupper part* being transparent. The two'walls are mounted vin a frame yg--andV spaced by a `strip 0, -f

vrlhenthe mirror. 1s held in theV` opposite direction as shown in` Fig. 3 V.the dropping weight@ pushes the rod fr' up so that thefpicture disappears behind the inirrorfo-il f; the

pocket glass seen from thev front being vone reflecting surface. yAs soon, h.owever, as the pocket glass isheld in the position shown in Fig. 3, the w eight o pushes the picture up so that it is visiblethrough the upper transparentpart of the front wall. I

In the pocket glass shown in Figs' 5.and 6 the space between the front wall b and the rear'wiall a is filled with water or another liquid and the body h enclosed between the two walls7 the specific gravity of which is lowerv :than that of the Water, yfloats in the Water. Between'the edges of the two Walls Y a'strip u of india rubber is arranged on Which the glass plates yare cemented by Aa cement insoluble in water. The pocket `glass is otherwise constructed as shown .in Fig. Vl. The bodyy It hidden behind the mirror foil ascends rsloWly Whenethe pocket glass Y is brought into the position shown. AThe' body-hy inightr'ailso be lof greater lspeciic gravitythanthe liquid enclosed `Ain the box in which case theibodyfwiill descend instead Y of ascending. A j l "The pocket glass'fmay also be used :forativertising purposes,4v as advefrtisernentA ,may be Vprinted on tl'ieprotecti'ng coverton the rear Weiteren the body 111,. 'The pocket glass: can

' also be used as puzzle game in which' case 'l claim v:-- A pocket glass as funny article consist- 'tWo iorniorefifloating' lbodies v`have to Abe 'broughtinto' predetermined positions, for into compartments arranged in the box.

. 'ing o'lA a ijl'atbox, a'rear 'Wall ot' 'the vbox fforin'edby-a mirror,l a transparent Yp art-lyreilectingffront Wall 01EV said box, and a body enclosed 'betweenftlie iront Wall and the rear Wall "so tha'tit moves over the re-iecting sur :tace When the pocket glass is turned end for end.

V A pocket glass l as Y funny articleconsist- Wallof box, alA transparent front Wall'o1 saidjbox, 7a mirror foil .covering partof said transparent ifr'ont Wall,` andV ya .bodyV enclosed between Athe frontfwall and the rear Wall normally hiddes behind 'the 'reetns part off said front Wajll so that'it kemerges @sus this reflecting am of the front-m11 leldfmpves ,overt-he recns Surface Of the 'iarwall when .the Pocket slasrsfis' turned lelld ,for v@iid- ,A- P0 let'gless 'as 'fuliy articleahsisi- `f j y' 1,603,327

ingof a fiat box,Y a rear Wall of said boX formed by a mirror, a transparent front Wall of said box, a'mirror foil on part of said transparent front iiallfa body enclosed between the `front Wall and the rear Wall Vof '.thevbox and normally hidden behind the refleeting part of said front'wall so that it yemerges-lout yof .th-is retlectingmpartof the frontV Wall and moves over the rede/citing surfaceof the rear 1 Wall lwhen the-pocket glass 'is turned end for. end, and athin' a1- most invisible thread ,to Which' sa-id body-is `'attached so that its i movementv is l;iinited.r-

4. Apocket glass as funny articleiconsistingrof `a flat boxiilled with:,aflquidfarear `Wall of said box formed of: a mirror, atran-sparent' front Wall v of said` boxfa mirrorfoil covering part of said transparent front Wall,

a vbody of lighternspecificgravityJthanfthe liquid in the box enclosed' between sai-d front Wall and said rear `Wall vand normally hidden behind the reflecting part of said front-Wall yso that it `enfierges out of this .-reiec/tingi part of the 'front Wall and moves Overthefieilect'- D l Y, v glass is turned end for/end. Y 1

5. A. pocket glass as unny-y aijtiefle consistinfr surdaceoi thel rear Wall when the-pocket ing of a -flat box filled vWithvaliquid, a Vrear Wall of said box formedof a'iniirroryaltransparent -front'wall of'psaid box, amirrorfoi'l partly covering said=transparent 'front Wall,

. AUGUST' 1 

